Governor for gas-engines, &amp;c.



' F. C. OLIN.

GOVERNOR PoR GAS ENGINES, 4m. APPLICATION FILED APR.29,1908.

Patented Feb. 14, 1911.

3 BEEETS-S11ET 2.

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GOVERNOR FOR GAS ENGINES, dw. APPLUATION FILED APR.29,1908.

Patented Feb. 14, 1911.

3 SHEETS-SHEET 3,

FRED C. OLIN', 0F BUFFALO, NEW YORK.

GOVERNOR FOR GAS-ENGINES, 85o.

Specification of Letters Patent.

Application filed April 29, 1908.

Patented Feb. 14, 1911.

Serial No. 429,839.

To all whom 'it may concern:

Be it known that l, Final) C. OLIN, a citi- Zen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented a new and useful lmprovement in Governors for Gas-Engines, &c.,of which the following is a specification.

This invention relates to a governor which is more particularly designedfor controlling the supply valve of a gas or other hydrocarbon engineaccording to the speed of the same but which may also be used forregulating the supply valve of an engine which is driven by anothermotive agent.

The object of this invention is to provide a governor for this purposewhich is comparatively simple in construction, reliable in operation andeasy of adjustment'; which is so constructed that it is sensitive whendriven by a slow moving member, and which prevents sudden variations inthe load upon the engine from producing an unduly quick change in theposition of the supply valve of the same.

In the accompanying drawings consisting of 3 sheets: Figure l is avertical longitudinal section of my improved governor. Fig. 2 is afragmentary horizontal section of the same on line 2--2, Fig. 1. Fig. 3is a fragmentary top plan view thereof. Figs. Il, 5 and G are verticalcross sections in the correspondingly numbered lines iu Fig. l.

Similar letters of reference indicate corresponding parts throughout theseveral views.

A represents a hollow driving shaft of a governor which may b-eoperatively connected with any suitable rotating part of the enginewhich is to be regulated. As shown in Fig. l, this shaft is arrangedhorizontally and journaled in bearings a, c. rising from a base B, butif desired this shaft may be otherwise arranged to suit the particularconstruction of the engine to which it is applied.

C represents a valve rod which is arranged axially within the drivingshaft and which is connected in any suitable manner With the` gas supplyor other valve which controls the engine.

D represents a longitudinally movable shifting sleeve mounted on theperiphery of the driving shaft and connected with the valve rod by atransverse pin Z passing through a longitudinal slot e in the drivingshaft. By this means the Valve rod and shifting sleeve are compelled toturn with the driving shaft but are free to move lengthwise of the shaftindependent thereof to an extent equal to the length of the slot c inthe driving shaft.

F represents a supporting sleeve which turns with its central part onthe shifting sleeve while its reduced front part turns upon the drivingshaft in front of the shifting sleeve. This supporting sleeve is rotatedabout the driving shaft and in the same direction but at a higher speedby means of a driven pinion g mounted on the driving shaft in rear ofthe supporting sleeve and secured at the front end of its hub to therear end of the supporting sleeve by set screws g1, an intermediate gearwheel 71, meshing with the driven pinion, an intermediate pinion z'connected with the iuter mediate gear wheel and journaled upon astationary arbor I, and a driving gear wheel J secured to the drivingshaft in rear of the driven pinion and meshing with the intermediatepinion. The arbor I may be supported in any suitable manner butpreferably by the upper end of a bracket K which has two lower legs Z, Zengaging with sockets or recesses Z1, Z1 in the upper side of the base Bwhile its central part is provided with an opening m which receives thehub of the driving gear wheel and is held in place thereon between therear side of the driving gear wheel and a screw nut m1 applied to therear end of its hub, as shown in Figs. l and 2.

0n opposite sides of its rear end the supporting sleeve is provided withlate 'ally projecting arms N which are preferably formed integraltherewith. On the outer end of each of these arms is pivoted anelbow-shaped governor lever having an inwardly projecting rear or innerarm o and a forwardly projecting front arm 01.

The inner arms of the elbow levers are operatively connected with theshifting sleeve D so that the latter and the valve rod are compelled tomove with the inner arms in a direction lengthwise of the driving shaftbut said arms and the parts connected therewith are free to rotate aboutthe driving shaft, shifting sleeve and valve rod. The connection betweenthe inner arms of the elbow levers and the shifting sleeve shown in thedrawings consists of a ring P which `is provided on diametricallyopposite sides with recesses p which receive the inner ends of the innerarms of the elbow levers. The bore of this ring engages with theperiphery of a coupling sleeve Q mounted on the driving shaft while itsfront edge engages with the rear end of the shifting sleeve and its rearedge engages with a iiange g on the coupling sleeve, the front end ofthe coupling sleeve being connected by a screw joint with the rear endof the shifting sleeve. rlie coupling sleeve and its flange togetherwith the shifting sleeve thus form an annular groove in which the ring Pis free to turn independently of the coupling and shifting sleeveswhile, nevertheless, it is compelled. to move axially with the couplingand shifting sleeves.

R, R1 represent two governor weights which are arranged on diametricallyopposite sides of the central part of the supporting sleeve and each ofwhich is pivoted on the front end of the front arm of the elbow lever onthe same side of the driving shaft. llfhen the governor is at rest thegovernor weights engage each other with their opposing inner sides forwhich purpose these weights are recessed or bifurcated on their innersides so that each weight can straddle the supporting sleeve, as shownin Fig. 6. While the governor is in operation the weights move radiallyinward and outward relatively to the driving shaft and during thismovement the weights are guided relatively to each other for keeping thesame in alinement. rlfhe guide device for this purpose preferablyconsists of two guide rods 1, r of tubular form arranged parallel toeach other on opposite sides of the driving shaft and each secured atone end in an opening r1 in one of the weights whilel its opposite endslides in an opening r2 in the other weight. The fast end of each guiderod r is preferably secured to its respective weighteby a screw s andthe extent of the sliding movement of the other end of this rod withreference to its weight is limited by means of a screw 81 secured to thelast mentioned weight and projecting into a longitudinal slot s2 formedin the sliding end of the guide rod r, as shown in Fig. 6.

The governor weights are yieldingly held in their innermost position bya spring tension device which preferably consists of two swivels orheads T each of which is pivoted to the inner arm of one of the elbowlevers and is provided with a flange t forming a forwardly facingshoulder, a guide u of tubular form secured to each swivel head andprojecting forwardly therefrom parallel with the driving shaft and intothe recess or bifurcation of the weight on the same side of the drivingshaft, a coil-shaped governor or return spring V surrounding each guidetube u and bearing at its rear end against the shoulder on the companionswivel head and an abutment disk W" movable axially on the reduced frontond of the supporting sleeve and engaging with the front ends of bothreturn springs, and an adjusting screw w engaging with the front side ofthe abutment disk and working on an external screw thread formed on thereduced front end of the supporting sleeve. By screwing the nut wforwardly or backwardly on the supporting sleeve the tension of thegovernor springs may be reduced or increased for varying the resistancewhich they offer to the outward movement of the governor weights.

Upon rotating the driving shaft motion in the same direction at anincreased speed is transmitted to the supporting sleeve by means of thetransmitting gears g, 71., 2', J. Buring this rotation of the supportingsleeve the governor weights fly outwardly by centrifugal force and carrythe front arms of the elbow levers in the same direction while their'inner or rear arms move lengthwise of the driving shaft, whereby theshifting sleeve and the valve rod are also moved forwardly lengthwise ofthe driving shaft and the valve connected with the valve rod is closedmore or less. lVhile the governor weights are thus thrown outwardly thesprings V are compressed but when the speed of the driving shaft isreduced these springs expand and operate to turn the elbow levers invthe direction for moving the governor weights inwardly and also causingthe valve rod to be moved rearwardly for opening the regulating valve toa greater extent.

ln order to prevent the governor from responding too suddenly when theload upon the engine is changed quickly, a retarding device is providedwhich preferably consists of two pistons or plungers ai sliding in theguide tubes r, heads .r1 closing those ends of the guide tubes r whichare secured to the governor weight R1, and a piston or plunger rod g/arranged in each guide tube r and secured at its inner end to the pistontherein while its outer end is secured to a bracket or arm z fixed onthe adjacent part of the governor weight in which the free end of t-heguide tube r slides, as shown in Fig. G.

If there is a sudden reduction in the load upon the engine the tendencyto suddenly increase its speed is prevented by the resistance which isoffered to the outward movement of the governor weights by the vacuumwhich is produced in the inner ends of the guide tubes r as the plungersare drawn out of the same. sudden increase of the load upon the engineis also prevented from causing the same to too suddenly decrease itsspeed owing to the resistance which is offered by the imprisoned air tothe inward movement of the governor weights as the plungers m movetoward the front or closed ends oit the guide tubes r.

My improved governor .is exceedingly compact in construction andtherefore especially desirable where but a limited amount of space isavailable, the Several parts are so constructed and arranged that thesame is not liable to get out ot' order and it et- 'ects a steadyregulation of the valve which controls the motive agent of the engine,thereby rendering the saine especially suit able for use where steadyrunning of the engine is desirable.

By arranging the springs V lengthwise between the weights and thesupporting sleeve and connecting the same with the inner or rear arms ofthe governor levers, it is possible to use springs which arecomparatively long and ot large, diameter with a minimum amount oitmovement during the regulating operation, thereby causing' the springsto be more active and render-mg the tension of the same more uni't'ormin diitl'erent positions of the weights.

l claim. as .my invention:

l. A governor comprising a hollow driving shaft, a valve rod movablelengthwise in said shatt, a shitting sleeve mounted on the outer side ofsaid sha't't and connected with the valve rod, a governor lever havingone arm connected with said shitting sleeve, a governor weight connectedwith the other arm ol said lever, a rotatable driving sleeve surroundingthe shifting sleeve and shat't and supporting said lever, means whichrotate said driving sleeve from said sha't't, a governor leveroperatively connected with the sl'iitting sleeve so as to be compelledto move therewith lengtlnvise ot said sha't't but be tree to rotateabout said shartt independent o't said sleeve, and a governor weightpivoted on said lever.

2. A governor comprising a hollow driving shalt, a valve rod movablelengthwise in said shaft, a shitting sleeve mounted on the outer sideot' said shaft and connected with the valve rod, a governor lever havingone arm connected with said shitting sleeve, a governor weight connectedwith the other arm of said lever, a rotatable support tor said lever,and means 'l'or rotating said support t'rom said shaft and connectedwith said valve rod, a governor lever operatively connected with theshitting sleeve so as to be compelled to move therewith lengthwise ofsaid shaft but be free to rotate about said shaft independent ot' saidsleeve, said connection consisting oit a ring having a recess whichreceives one arm of said lever and which engage at one edge with the endot said shitting sleeve and a coupling which is engaged on its peripheryby the bore of said ring and which is connected at one end with saidsleeve while its opposite end is prt vided with a flange engaging withthe other edge oit said ring, a governor weight connected with saidlever, a support t'or said lever rotatable about said shat't, and meansfor rotating said support trom said shaft.

l. A governor comprising a driving shaft, a valve rod movable lengthwiseo't said sha'lt, a governor lever operatively connected with the valverod, a governor weight connected with said lever, a support -tor saidlever rotatable about said shaitt, and means lor rotating said supportfrom said sha'tt at an increased speed.

fl. A governtn' comprising a hollow driving shatt, a valve rod movablelengthwise in said sha'lt, a shitting sleeve mounted on the outer sideoit said shatt and connected with the valve rod, a governor lever havingone arm connected with said shitting sleeve, a governor `weightconnected with the other arm of said lever, a rotatable support itorsaid lever, and means for rotating said support from said sha'litconsisting ot' a driven pinion connected with said support, anintcrmediate gear wheel meshing with the driven pinioir, an intermediatepinion connected with the intermediate gear wheel, and a driving gearwheel secured to said sha'tt and meshing with said intermediate pinion.

5. A governor comprising a hollow driving sha'tt, a valve rod movablelengthwise in said shat, a shitting sleeve mounted on the outer side otsaid shaft't and connected with the valve rod, a governor lever havingone arm coimected with said shitting sleeve, a governor weight connectedwith the other arm of said lever, a rotatable support 'tor said lever,and means t'or rota ting said support from said shailt consisting ot adriven pinion coimcc-,ted with said support, an intermediate gear wheelmeshing with the driven pinion, an intermediate pinion connected withthe intermediate gear wheel, and a driving gear wheel secured to saidsha'tt and meshing with said intermediate pinion and a stationarybracket having au arbor upon which said intermediate pinion and gearwheel are journaled and a perforated part which receives the hub o'l thedriving gear wheel and engages on one oit its sides with the tattici',and ay screw nut arranged on the hub oit' the driving gear wheel andengaging with the other side ot said bracket.

(3. A governor comprising a hollow driving sha'tt, a valve rod movablelengthwise in said sha't't, a shitting sleeve mounted on the outer lsideo't said shaft and connected with the `valve rod, a governor leverhaving one arm connected with said shitting sleeve, a governor' weightconnected with the other arm otl said lever, a supporting sleeverotatable about said sha'lt and having an arm on which said lever ispivoted, and means l ttl for rotating said supporting sleeve from saiddriving shaft.

7. A governor comprising a hollow driving shaft, a valve rod movablelengthwise in said shaft, a shifting sleeve mounted on the outer side ofsaid shaft and connected with the valve rod, a governor' lever havingone arm connected with said shifting sleeve, a governor weight connectedwith the other arm of said lever, a supporting sleeve rotatable aboutsaid shaft and shifting sleeve and having an arm on which said lever ispivoted, means for rotating said supporting sleeve from said drivingshaft, and a spring interposed between said lever and said supportingsleeve and operating to turn the same in the direction for moving theweight toward said shaft.

8. A governor comprising a hollow driving shaft, a valve rod movablelengthwise in said shaft, a shifting sleeve mounted on the outer side ofsaid shaft and connected with the valve rod, a governor lever having onearm connected with said shifting sleeve, a governor weight connectedwith the other arm of said lever, a supporting sleeve rotatable aboutsaid shaft and shifting sleeve and having an arm on which said lever ispivoted, means for rotating said supporting sleeve from said drivinOshaft, a spring arranged at the side of the driving shaft and operatingat one end on said lever, and an abutment engaging the opposite end ofsaid spring and adjustably mounted on said supporting sleeve.

9. A governor comprising a hollow driving shaft, a valve rod movablelengthwise in said shaft, a shifting sleeve mount-ed on the outer sideof said shaft and connected with the valve rod, a governor lever havingone arm connected wit-h said shifting sleeve. a governor weightconnected with the other arm of said lever, a supporting sleeverotatable about said shaft and shifting sleeve and having an arm onwhich said lever is pivoted, means for rotating said supporting sleevefrom said driving shaft, a spring operating at one end on said lever, anabutment disk engaging with the opposite end of the vspring and movablelengthwise on the supporting sleeve, and a screw nut arranged on thesupporting sleeve and engaging said abut-ment disk.

10. A governor comprising a hollow driving shaft, a valve rod movablelengthwise in said shaft, a shifting sleeve mounted on the outer side ofsaid shaft and connected with the valve rod, a governor lever having onearm connected with said shifting sleeve, a governor weight connectedwith the other arm of said l-ever, a supporting sleeve rotatable aboutsaid shaft and having an arm on which said lever is pivoted, means forrotating said supporting sleeve from said driving shaft, a swivelpivoted on the lever,

a spring bearing at one end against said swivel, and an abutment on thesupporting sleeve bearing against the other end of said spring.

11. A governor comprising a hollow driving` shaft, a valve rod movablelengthwise in said shaft, a shifting sleeve mounted on the outer side ofsaid shaft and connected with the valve rod, a governor lever having onearm connected with said shifting sleeve, a governor weight connectedwith the other arm of said lever, a supporting sleeve rotatable aboutsaid shaft and having an arm on which said lever is pivoted, means forrotating said supporting sleeve from said driving shaft, a swivelpivoted on the lever, a guide connected with saidswivel, a springsurrounding said guide and bearing at one end against said guide, and anabutment on said supporting sleeve bearing against the other end of saidspring.

19. A governor comprising a driving shaft, a valve rod movablelengthwise of the driving shaft, a pair of governor levers arranged onopposite sides of the shaft and operatively connected with the valverod, means for rotating said levers from the driving shaft, governorweights pivoted on said levers, and means operating to maintain saidweights in alinement comprising a guide rod secured at one end to one ofsaid weights and sliding in an opening in the other weight, and meansfor limiting the separation of said weights consisting of a screwarranged on the weight in which said rod slides and engaging with alongitudinal slot in the sliding part of said rod.

13. A governor comprising a driving shaft, a valve rod movablelengthwise of the driving shaft, a pair of governor levers arranged onopposite sides of the shaft and operatively connected with the valverod, means for rotating said levers from said driving shaft, governorweights arranged on said levers, and means for retarding the separationand approach of said weights.

14E. A governor comprising a driving shaft, a valve rod movablelengthwise of the driving shaft, a pair of governor levers arranged onopposite sides of the shaft and operatively connected with the valverod, means for rotating said levers from said driving shaft, governorweights arranged on said levers, and means for retarding the separationand approach of said weights consisting of a tube secured to one of saidweights and having a head at one end and a plunger arranged in said tubeconnected with the other weight.

15. A governor comprising a driving shaft, a valve rod movablelengthwise of the driving shaft, a pair of governor levers arranged onopposite sides of the shaft and operatively connected with the valverod, means for rotating said levers from said driving shaft, governorWeights arranged on said levers, and means for reiarding` the separationand approach of said weights consisting' of a tube closed at one end andse cured at its closed end to one weight and sliding` at its other endin the other weight, and a plunger arranged in said tube and connectedWith the other weight.

16. A governor comprising a hollow driving shaft, a valve rod slidinglengthwise in the shaft, a supporting sleeve rotatable about said shaft,means for rotating said sleeve from the shaft, governor levers pivotedon opposite sides el. said sleeves, `:governor weights Connected withsaid levers and having' their inner opposingr sides bi'fnrcated orrecessed, and return springs arrangrrl in lnfnreated or recessed partsof said weights and eaeh operatively Connected at opposite ends with oneof said levers and said sleeve.

fitness my hand this 27th day of April,

FRED C. OLIN. iVitnesses:

THEO. L. Pori, ANNA HEIGIS,

